Editing Gasoline (section)

==Comparison with other fuels==
{{More citations needed section|date=December 2020}}{{See also|Energy content of biofuel}}<!--Note: I modified this table because the values in SI units didn't agree with the values in British or US units. So I used another source (Oak Ridge reference), but it did not have MJ/kg, and I did not have the time to try to find accurate densities in order to convert to MJ/kg. If someone can fill in the blanks using good data, it would be useful.-->

Below is a table of the [[energy density]] (per volume) and [[specific energy]] (per mass) of various transportation fuels as compared with gasoline. In the rows with [[Higher heating value|gross]] and [[Lower heating value|net]], they are from the [[Oak Ridge National Laboratory]]'s Transportation Energy Data Book.<ref name="TEDB2">{{cite web |title=Appendix B – Transportation Energy Data Book |url=http://cta.ornl.gov/data/appendix_b.shtml |url-status=dead |archive-url=https://web.archive.org/web/20110718143536/http://cta.ornl.gov/data/appendix_b.shtml |archive-date=18 July 2011 |access-date=8 July 2011 |work=ornl.gov |df=dmy-all}}</ref>
{| class="wikitable sortable"
! rowspan=3 | Fuel type<!-- The type needs more references which specify compositions of each fuel, plus citations, to avoid vagueness in numbers. --> !! colspan=4 | Energy density !! colspan=4 | Specific energy !! rowspan=3 | [[Octane rating|RON]]
|-
! colspan=2 | Gross !! colspan=2 | Net !! colspan=2 | Gross !! colspan=2 | Net
|-
! MJ/L !! BTU{{\}}U.S. gal !! MJ/L !! BTU{{\}}U.S. gal !! MJ/kg !! BTU/lb !! MJ/kg !! BTU/lb
|-
| Gasoline || {{convert|34.8|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|115400|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|44.4|MJ/kg|BTU/lb|disp=table}}<ref name="Thomas2">{{Cite web |author=George Thomas |title=Overview of Storage Development DOE Hydrogen Program |url=http://www.eere.energy.gov/hydrogenandfuelcells/pdfs/storage.pdf |url-status=dead |archive-url=https://web.archive.org/web/20070221185632/http://www1.eere.energy.gov/hydrogenandfuelcells/pdfs/storage.pdf |archive-date=21 February 2007}}&nbsp;{{small|(99.6&nbsp;KB)}}. Livermore, California. Sandia National Laboratories. 2000.</ref> || {{convert|41.1|MJ/kg|BTU/lb|disp=table}} || 91–98
|-
| [[Autogas]] ([[Liquified petroleum gas|LPG]]){{Efn|Consisting mostly of C3 and C4 hydrocarbons}} || {{convert|26.8|MJ/L|BTU/U.S.gal|disp=table}} || || || {{convert|46|MJ/kg|BTU/lb|disp=table}} || || || 108
|-
| [[Ethanol fuel|Ethanol]] || {{convert|21.2|MJ/L|BTU/U.S.gal|disp=table}}<ref name="Thomas2" /> || {{convert|75700|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|26.8|MJ/kg|BTU/lb|disp=table}}<ref name="Thomas2" /> || {{convert|26.7|MJ/kg|BTU/lb|disp=table}} || 108.7<ref name="Fuel 89 (2010) 2713-27202">{{cite journal |last1=Eyidogan |first1=Muharrem |last2=Ozsezen |first2=Ahmet Necati |last3=Canakci |first3=Mustafa |last4=Turkcan |first4=Ali |year=2010 |title=Impact of alcohol–gasoline fuel blends on the performance and combustion characteristics of an SI engine |journal=Fuel |volume=89 |issue=10 |page=2713 |doi=10.1016/j.fuel.2010.01.032|bibcode=2010Fuel...89.2713E }}</ref><!--remove incorrect citation of 113<ref name='Texas Energy Conservation Office'>{{cite web | url = http://www.seco.cpa.state.tx.us/re_ethanol.htm | title = Ethanol | access-date =6 October 2010}}</ref>-->
|-
| [[Methanol]] || {{convert|17.9|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|56600|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|22.6|MJ/kg|BTU/lb|disp=table}} || {{convert|19.9|MJ/kg|BTU/lb|disp=table}} || 123
|-
| [[Butanol fuel|Butanol]] || {{convert|29.2|MJ/L|BTU/U.S.gal|disp=table}} || || || {{convert|36.6|MJ/kg|BTU/lb|disp=table}} || || || 91–99{{Clarify|date=June 2009|reason=need specific compositions of each fuel, plus cites, to avoid vagueness in numbers; pure n-butanol only has one rating; otherwise split into two Butanol mixes}}
|-
| [[Alcohol fuel|Gasohol]] || {{convert|31.2|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|112400|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || || || || || 93–94{{Clarify|date=June 2009|reason=can only be one figure, cites would help}}
|-
| [[Diesel fuel|Diesel]]{{Efn|Diesel fuel is not used in a gasoline engine, so its low octane rating is not an issue; the relevant metric for diesel engines is the [[cetane number]].}} || {{convert|38.6|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|128700|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|45.4|MJ/kg|BTU/lb|disp=table}} || {{convert|42.2|MJ/kg|BTU/lb|disp=table}} || 25
|-
| [[Biodiesel]] || {{convert|33.3|–|35.7|MJ/L|BTU/U.S.gal|disp=table}}<ref>{{cite web |title=Extension Forestry |url=http://www.ces.ncsu.edu/forestry/biomass/pubs/WB0008.pdf |url-status=dead |archive-url=https://web.archive.org/web/20121122142254/http://www.ces.ncsu.edu/forestry/biomass/pubs/WB0008.pdf |archive-date=22 November 2012 |publisher=North Carolina Cooperative Extension}}</ref>{{Clarify|date=June 2009|reason=need specific composition, plus cite, to avoid vagueness in numbers; otherwise remove this as uninformative}} || {{convert|117100|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || || || || ||
|-
| [[Avgas]] || {{convert|33.5|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|112000|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|46.8|MJ/kg|BTU/lb|disp=table}} || {{convert|43.3|MJ/kg|BTU/lb|disp=table}} ||
|-
| [[Aviation fuel#Energy content|Jet A]] || {{convert|35.1|MJ/L|BTU/U.S.gal|disp=table}} || || || {{convert|43.8|MJ/kg|BTU/lb|disp=table}} || || ||
|-
| [[Aviation fuel#Energy content|Jet B]] || {{convert|127500|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|118700|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || || || || ||
|-
| [[Liquefied natural gas|LNG]] || {{convert|25.3|MJ/L|BTU/U.S.gal|disp=table}} || || || {{convert|55|MJ/kg|BTU/lb|disp=table}} || || ||
|-
| [[Liquefied petroleum gas|LPG]] || {{convert|91300|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|83500|BTU/U.S.gal|MJ/L|order=flip|disp=table}} || {{convert|46.1|MJ/kg|BTU/lb|disp=table}} || {{convert|42.3|MJ/kg|BTU/lb|disp=table}} ||
|-
| [[Compressed hydrogen|CGH<sub>2</sub>]]{{Efn|at {{convert|{{convert|20|K|C|disp=output number only}}|C|F}}}} || {{convert|10.1|MJ/L|BTU/U.S.gal|disp=table}} || {{convert|130|BTU/U.S.gal|MJ/L|order=flip|disp=table}}<ref>{{cite web |date=25 November 2005 |title=Frequently Asked Questions |url=http://www.hydrogenassociation.org/general/faqs.asp |url-status=dead |archive-url=https://web.archive.org/web/20051125094124/http://www.hydrogenassociation.org/general/faqs.asp |archive-date=25 November 2005 |publisher=The National Hydrogen Association |access-date=23 May 2008 }}</ref> || {{convert|142|MJ/kg|BTU/lb|disp=table}} || {{convert|0.506|MJ/kg|BTU/lb|disp=table}} ||
|}